Display device and method of fabricating the same

Patent metadata

Field	Value
Publication number	US-11340483-B2
Application number	US-202117208372-A
Country	US
Kind code	B2
Filing date	Mar 22, 2021
Priority date	May 3, 2016
Publication date	May 24, 2022
Grant date	May 24, 2022

Abstract

A display device includes first and second substrates each including a short side and a long side, ground parts located on at least one of the short and long sides of each of the first and second substrates and including at least one first ground surfaces, which are perpendicular to opposing surfaces of the first and second substrates, and at least one second ground surfaces, which are provided at at least one edge of the second substrate to define an obtuse angle with reference to the first ground surfaces, and unevenness disposed on the first ground surfaces along a first direction, where the unevenness defines an acute angle with reference to a normal line to the opposing surfaces.

First claim

What is claimed is:

1. A display device, comprising:
first and second substrates facing each other to define opposing surfaces, each of the first and second substrates including a first side surface and a second side surface; and
ground parts located on the first side surface or on the second side surface and including at least one first ground surface, which is perpendicular to the opposing surfaces,
wherein the at least one first ground surface has unevenness extended in a first direction which defines a first angle with reference to a normal line to the opposing surfaces, and
wherein the at least one first ground surface does not have any unevenness extended in a second direction which intersects the first direction, and
wherein the first angle is an acute angle.

2. The display device of claim 1 , wherein the ground parts include at least one second ground surface, which is tilted from the at least one first ground surface at a second angle,
wherein the at least one second ground surface is located at a top of the first or second side surface or at a bottom of the first or second side surface.

3. The display device of claim 2 , wherein
each of the first and second substrates further includes a third side surface opposite to the first side surface,
the first side surface includes both the at least one first ground surface and the at least one second ground surface, and
the third side surface includes only the at least one first ground surface.

4. The display device of claim 3 , wherein
the first side surface includes two second ground surfaces, and
the two second ground surfaces are located at a top and a bottom, respectively, of the first side surface.

5. The display device of claim 2 , wherein the second angle is about 30 degrees to about 80 degrees.

6. The display device of claim 1 , wherein the unevenness extended in the first direction has a center line average roughness Ra of about 300 nanometers or less.

Assignees

• Samsung Display Co Ltd

Inventors

• Yi Kang Bin
• KO Dong Rak
• Kim Sung Ho
• Seo Eun Ji
• Son Sung Hun
• Shin Hee Kyun
• YOON Seok Lyul
• Lee Jeong Seok
• Jung Sung Wook
• Jeong Hwan Kyeong

Classifications

• G02F1/133302

  Rigid substrates, e.g. inorganic substrates · CPC title

• G02F1/133311

  Environmental protection, e.g. against dust or humidity · CPC title

• B24B9/06

  of non-metallic inorganic material, e.g. stone, ceramics, porcelain · CPC title

• G02F1/1333 Primary

  Constructional arrangements; {Manufacturing methods}(G02F1/135, G02F1/136 take precedence) · CPC title

• B24B7/24 Primary

  for grinding or polishing glass · CPC title